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Andreas Eversberg
2017-10-03 10:48:50 +02:00
parent 91b48c09de
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@@ -27,8 +27,7 @@ NMT was a Scandinavian cellular network, developed by and used in Scandinavian c
If was used in the Baltic countries, Switzerland, Netherlands, Hungary, Poland, Bulgaria, Romania, Czech Republic, Slovakia, Slovenia, Serbia, Turkey, Croatia, Bosnia, Russia, Ukraine and in Asia.
The NMT network was opened in Sweden and Norway in 1981, and in Denmark and Finland in 1982. Iceland joined in 1986.
Networks where shut down in 2000 (Estonia), 2002 (Finland), 2004 (Norway), 2007 (Sweden), 2010 (Iceland).
In 1989, the German Wall came down and C-Netz was quickly deployed in eastern Germany to support the congested fixed network.
It was a cellular system, so frequencies could be used efficiently..
It was a cellular system, so frequencies could be used efficiently.
It offered handover capability, so moving phones could change cells during a call.
Authentication was introduces (SIS), to prevent fraud, but it was optional.
Older phones without SIS could be cloned by receiving and decoding the roaming update message.